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--></STYLE></HEAD><BODY><CENTER><A HREF="#CONTENTS"><IMG SRC="images/cups-large.gif" BORDER="0" WIDTH="431" HEIGHT="511"><BR><H1>CUPS Implementation of IPP</H1></A><BR>
CUPS-IPP-1.1<BR>
Easy Software Products<BR>
Copyright 1997-2002 All Rights Reserved<BR></CENTER><HR><H1 ALIGN="CENTER"><A NAME="CONTENTS">Table of Contents</A></H1><BR><BR><B><A HREF="#1">1 Scope</A></B><UL><LI><A HREF="#1_1">1.1 Identification</A></LI><LI><A HREF="#1_2">1.2 System Overview</A></LI><LI><A HREF="#1_3">1.3 Document Overview</A></LI></UL><B><A HREF="#2">2 References</A></B><UL><LI><A HREF="#2_1">2.1 CUPS Documentation</A></LI><LI><A HREF="#2_2">2.2 Other Documents</A></LI></UL><B><A HREF="#3">3 Overview</A></B><UL><LI><A HREF="#3_1">3.1 IPP URIs</A></LI><LI><A HREF="#3_2">3.2 CUPS IPP Operations</A></LI></UL><B><A HREF="#4">4 Operations</A></B><UL><LI><A HREF="#4_1">4.1 Print-Job Operation</A></LI><UL><LI><A HREF="#4_1_1">4.1.1 Print-Job Request</A></LI><LI><A HREF="#4_1_2">4.1.2 Print-Job Response</A></LI></UL><LI><A HREF="#4_2">4.2 Create-Job Operation</A></LI><UL><LI><A HREF="#4_2_1">4.2.1 Create-Job Request</A></LI><LI><A HREF="#4_2_2">4.2.2 Create-Job Response</A></LI></UL><LI><A HREF="#4_3">4.3 Set-Job-Attributes Operation</A></LI><UL><LI><A HREF="#4_3_1">4.3.1 Set-Job-Attributes Request</A></LI><LI><A HREF="#4_3_2">4.3.2 Set-Job-Attributes Response</A></LI></UL><LI><A HREF="#4_4">4.4 CUPS-Get-Default Operation</A></LI><UL><LI><A HREF="#4_4_1">4.4.1 CUPS-Get-Default Request</A></LI><LI><A HREF="#4_4_2">4.4.2 CUPS-Get-Default Response</A></LI></UL><LI><A HREF="#4_5">4.5 CUPS-Get-Printers Operation</A></LI><UL><LI><A HREF="#4_5_1">4.5.1 CUPS-Get-Printers Request</A></LI><LI><A HREF="#4_5_2">4.5.2 CUPS-Get-Printers Response</A></LI></UL><LI><A HREF="#4_6">4.6 CUPS-Add-Modify-Printer Operation</A></LI><UL><LI><A HREF="#4_6_1">4.6.1 CUPS-Add-Modify-Printer Request</A></LI><LI><A HREF="#4_6_2">4.6.2 CUPS-Add-Modify-Printer Response</A></LI></UL><LI><A HREF="#4_7">4.7 CUPS-Delete-Printer Operation</A></LI><UL><LI><A HREF="#4_7_1">4.7.1 CUPS-Delete-Printer Request</A></LI><LI><A HREF="#4_7_2">4.7.2 CUPS-Delete-Printer Response</A></LI></UL><LI><A HREF="#4_8">4.8 CUPS-Get-Classes Operation</A></LI><UL><LI><A HREF="#4_8_1">4.8.1 CUPS-Get-Classes Request</A></LI><LI><A HREF="#4_8_2">4.8.2 CUPS-Get-Classes Response</A></LI></UL><LI><A HREF="#4_9">4.9 CUPS-Add-Modify-Class Operation</A></LI><UL><LI><A HREF="#4_9_1">4.9.1 CUPS-Add-Modify-Class Request</A></LI><LI><A HREF="#4_9_2">4.9.2 CUPS-Add-Modify-Class Response</A></LI></UL><LI><A HREF="#4_10">4.10 CUPS-Delete-Class Operation</A></LI><UL><LI><A HREF="#4_10_1">4.10.1 CUPS-Delete-Class Request</A></LI><LI><A HREF="#4_10_2">4.10.2 CUPS-Delete-Class Response</A></LI></UL><LI><A HREF="#4_11">4.11 CUPS-Accept-Jobs Operation</A></LI><UL><LI><A HREF="#4_11_1">4.11.1 CUPS-Accept-Jobs Request</A></LI><LI><A HREF="#4_11_2">4.11.2 CUPS-Accept-Jobs Response</A></LI></UL><LI><A HREF="#4_12">4.12 CUPS-Reject-Jobs Operation</A></LI><UL><LI><A HREF="#4_12_1">4.12.1 CUPS-Reject-Jobs Request</A></LI><LI><A HREF="#4_12_2">4.12.2 CUPS-Reject-Jobs Response</A></LI></UL><LI><A HREF="#4_13">4.13 CUPS-Set-Default Operation</A></LI><UL><LI><A HREF="#4_13_1">4.13.1 CUPS-Set-Default Request</A></LI><LI><A HREF="#4_13_2">4.13.2 CUPS-Set-Default Response</A></LI></UL><LI><A HREF="#4_14">4.14 CUPS-Get-Devices Operation</A></LI><UL><LI><A HREF="#4_14_1">4.14.1 CUPS-Get-Devices Request</A></LI><LI><A HREF="#4_14_2">4.14.2 CUPS-Get-Devices Response</A></LI></UL><LI><A HREF="#4_15">4.15 CUPS-Get-PPDs Operation</A></LI><UL><LI><A HREF="#4_15_1">4.15.1 CUPS-Get-PPDs Request</A></LI><LI><A HREF="#4_15_2">4.15.2 CUPS-Get-PPDs Response</A></LI></UL><LI><A HREF="#4_16">4.16 CUPS-Move-Job Operation</A></LI><UL><LI><A HREF="#4_16_1">4.16.1 CUPS-Move-Job Request</A></LI><LI><A HREF="#4_16_2">4.16.2 CUPS-Move-Job Response</A></LI></UL></UL><B><A HREF="#5">5 Attributes</A></B><UL><LI><A HREF="#5_1">5.1 Device Attributes</A></LI><UL><LI><A HREF="#5_1_1">5.1.1 device-class (type2 keyword)</A></LI><LI><A HREF="#5_1_2">5.1.2 device-info (text(127))</A></LI><LI><A HREF="#5_1_3">5.1.3 device-make-and-model (text(127))</A></LI><LI><A HREF="#5_1_4">5.1.4 device-uri (uri)</A></LI></UL><LI><A HREF="#5_2">5.2 Job Template Attributes</A></LI><UL><LI><A HREF="#5_2_1">5.2.1 blackplot (boolean)</A></LI><LI><A HREF="#5_2_2">5.2.2 brightness (integer(0:200))</A></LI><LI><A HREF="#5_2_3">5.2.3 columns (integer(1:4))</A></LI><LI><A HREF="#5_2_4">5.2.4 cpi (type2 enum)</A></LI><LI><A HREF="#5_2_5">5.2.5 fitplot (boolean)</A></LI><LI><A HREF="#5_2_6">5.2.6 gamma (integer(1:10000))</A></LI><LI><A HREF="#5_2_7">5.2.7 hue (integer(-180:180))</A></LI><LI><A HREF="#5_2_8">5.2.8 job-billing (text(MAX))</A></LI><LI><A HREF="#5_2_9">5.2.9 job-hold-until (keyword | name(MAX))</A></LI><LI><A HREF="#5_2_10">5.2.10 job-sheets (1setof type3 keyword |
name(MAX))</A></LI><LI><A HREF="#5_2_11">5.2.11 job-originating-host-name (name(MAX))</A></LI><LI><A HREF="#5_2_12">5.2.12 lpi (type2 enum)</A></LI><LI><A HREF="#5_2_13">5.2.13 natural-scaling (integer(1:1000))</A></LI><LI><A HREF="#5_2_14">5.2.14 number-up-layout (type2 keyword)</A></LI><LI><A HREF="#5_2_15">5.2.15 page-border (type2 keyword)</A></LI><LI><A HREF="#5_2_16">5.2.16 page-bottom (integer(0:MAX))</A></LI><LI><A HREF="#5_2_17">5.2.17 page-label (text(MAX))</A></LI><LI><A HREF="#5_2_18">5.2.18 page-left (integer(0:MAX))</A></LI><LI><A HREF="#5_2_19">5.2.19 page-right (integer(0:MAX))</A></LI><LI><A HREF="#5_2_20">5.2.20 page-set (type2 keyword)</A></LI><LI><A HREF="#5_2_21">5.2.21 page-top (integer(0:MAX))</A></LI><LI><A HREF="#5_2_22">5.2.22 penwidth (integer(0:MAX))</A></LI><LI><A HREF="#5_2_23">5.2.23 position (type2 keyword)</A></LI><LI><A HREF="#5_2_24">5.2.24 ppi (integer(1:MAX))</A></LI><LI><A HREF="#5_2_25">5.2.25 prettyprint (boolean)</A></LI><LI><A HREF="#5_2_26">5.2.26 saturation (integer(0:200))</A></LI><LI><A HREF="#5_2_27">5.2.27 scaling (integer(1:1000))</A></LI><LI><A HREF="#5_2_28">5.2.28 wrap (boolean)</A></LI></UL><LI><A HREF="#5_3">5.3 PPD Attributes</A></LI><UL><LI><A HREF="#5_3_1">5.3.1 ppd-natural-language (naturalLanguage)</A></LI><LI><A HREF="#5_3_2">5.3.2 ppd-make (text(127))</A></LI><LI><A HREF="#5_3_3">5.3.3 ppd-make-and-model (text(127))</A></LI><LI><A HREF="#5_3_4">5.3.4 ppd-name (name(255))</A></LI></UL><LI><A HREF="#5_4">5.4 Printer Attributes</A></LI><UL><LI><A HREF="#5_4_1">5.4.1 job-k-limit (integer)</A></LI><LI><A HREF="#5_4_2">5.4.2 job-page-limit (integer)</A></LI><LI><A HREF="#5_4_3">5.4.3 job-quota-period (integer)</A></LI><LI><A HREF="#5_4_4">5.4.4 job-sheets-supported (1setof type3 keyword |
name(MAX))</A></LI><LI><A HREF="#5_4_5">5.4.5 printer-type (type2 enum)</A></LI><LI><A HREF="#5_4_6">5.4.6 printer-type-mask (type2 enum)</A></LI><LI><A HREF="#5_4_7">5.4.7 requesting-user-name-allowed (1setof
name(127))</A></LI><LI><A HREF="#5_4_8">5.4.8 requesting-user-name-denied (1setof
name(127))</A></LI></UL><LI><A HREF="#5_5">5.5 Printer Class Attributes</A></LI><UL><LI><A HREF="#5_5_1">5.5.1 member-names (1setof name(127))</A></LI><LI><A HREF="#5_5_2">5.5.2 member-uris (1setof uri)</A></LI></UL></UL><B><A HREF="#6">A Glossary</A></B><UL><LI><A HREF="#6_1">A.1 Terms</A></LI><LI><A HREF="#6_2">A.2 Acronyms</A></LI></UL><HR><H1><A NAME="1">1 Scope</A></H1><H2><A NAME="1_1">1.1 Identification</A></H2><P>This document provides an overview of the Internet Printing Protocol
(&quot;IPP&quot;) version 1.1 as implemented in the Common UNIX Printing System
(&quot;CUPS&quot;) version 1.1.</P><H2><A NAME="1_2">1.2 System Overview</A></H2><P>CUPS provides a portable printing layer for UNIX&reg;-based operating
systems. It has been developed by<A HREF="http://www.easysw.com"> Easy
Software Products</A> to promote a standard printing solution for all
UNIX vendors and users. CUPS provides the System V and Berkeley
command-line interfaces.</P><P>CUPS uses the Internet Printing Protocol (&quot;IPP&quot;) as the basis for
managing print jobs and queues. The Line Printer Daemon (&quot;LPD&quot;) Server
Message Block (&quot;SMB&quot;), and AppSocket (a.k.a. JetDirect) protocols are
also supported with reduced functionality. CUPS adds network printer
browsing and PostScript Printer Description (&quot;PPD&quot;) based printing
options to support real-world printing under UNIX.</P><P>CUPS also includes a customized version of GNU Ghostscript (currently
based off GNU Ghostscript 5.50) and an image file RIP that are used to
support non-PostScript printers. Sample drivers for HP and EPSON
printers are included that use these filters.</P><H2><A NAME="1_3">1.3 Document Overview</A></H2><P>This document is organized into the following sections:</P><UL><LI><A HREF="#1">1 - Scope</A></LI><LI><A HREF="#2">2 - References</A></LI><LI><A HREF="#3">3 - Overview</A></LI><LI><A HREF="#4">4 - Operations</A></LI><LI><A HREF="#5">5 - Attributes</A></LI><LI><A HREF="#6">A - Glossary</A></LI></UL><H1><A NAME="2">2 References</A></H1><H2><A NAME="2_1">2.1 CUPS Documentation</A></H2><P>The following CUPS documentation is referenced by this document:</P><UL><LI>CUPS-CMP-1.1: CUPS Configuration Management Plan</LI><LI>CUPS-IDD-1.1: CUPS System Interface Design Description</LI><LI>CUPS-IPP-1.1: CUPS Implementation of IPP</LI><LI>CUPS-SAM-1.1.x: CUPS Software Administrators Manual</LI><LI>CUPS-SDD-1.1: CUPS Software Design Description</LI><LI>CUPS-SPM-1.1.x: CUPS Software Programming Manual</LI><LI>CUPS-SSR-1.1: CUPS Software Security Report</LI><LI>CUPS-STP-1.1: CUPS Software Test Plan</LI><LI>CUPS-SUM-1.1.x: CUPS Software Users Manual</LI><LI>CUPS-SVD-1.1: CUPS Software Version Description</LI></UL><H2><A NAME="2_2">2.2 Other Documents</A></H2><P>The following non-CUPS documents are referenced by this document:</P><UL><LI><A HREF="http://partners.adobe.com/asn/developer/PDFS/TN/5003.PPD_Spec_v4.3.pdf">
Adobe PostScript Printer Description File Format Specification, Version
4.3.</A></LI><LI><A HREF="http://partners.adobe.com/asn/developer/PDFS/TN/PLRM.pdf">
Adobe PostScript Language Reference, Third Edition.</A></LI><LI>IPP: Job and Printer Set Operations</LI><LI>IPP/1.1: Encoding and Transport</LI><LI>IPP/1.1: Implementers Guide</LI><LI>IPP/1.1: Model and Semantics</LI><LI><A HREF="http://www.ietf.org/rfc/rfc1179.txt">RFC 1179, Line Printer
Daemon Protocol</A></LI><LI><A HREF="http://www.ietf.org/rfc/rfc2567.txt">RFC 2567, Design Goals
for an Internet Printing Protocol</A></LI><LI><A HREF="http://www.ietf.org/rfc/rfc2568.txt">RFC 2568, Rationale
for the Structure of the Model and Protocol</A> for the Internet
Printing Protocol</LI><LI><A HREF="http://www.ietf.org/rfc/rfc2569.txt">RFC 2569, Mapping
between LPD and IPP Protocols</A></LI><LI><A HREF="http://www.ietf.org/rfc/rfc2616.txt">RFC 2616, Hypertext
Transfer Protocol -- HTTP/1.1</A></LI><LI><A HREF="http://www.ietf.org/rfc/rfc2617.txt">RFC 2617, HTTP
Authentication: Basic and Digest Access</A> Authentication</LI></UL><H1><A NAME="3">3 Overview</A></H1><P>CUPS 1.1 implements IPP/1.1 and the operations and attributes defined
in the &quot;IPP: Job and Printer Set Operations&quot;, &quot;IPP/1.1: Output-bin
Attribute Extension&quot;, and &quot;IPP/1.1: finishings 'fold',' trim', and
'bale' attribute values extension&quot; specifications.</P><P>CUPS also provides 13 new operations and many new attributes to
support multiple IPP printers and printer classes on a single host.</P><H2><A NAME="3_1">3.1 IPP URIs</A></H2><P>CUPS supports both the &quot;http&quot; and &quot;ipp&quot; methods. The following
resource names are used:</P><DL><DT>method://hostname:port/</DT><DD>Can be used for all &quot;get&quot; operations.</DD><DT>method://hostname:port/admin</DT><DD>Used for all administrative operations.</DD><DT>method://hostname:port/classes/name</DT><DD>Specifies a printer class.</DD><DT>method://hostname:port/jobs/id</DT><DD>Specifies a job.</DD><DT>method://hostname:port/printers/name</DT><DD>Specifies a printer.</DD></DL><P>So a typical printer URI would be
&quot;ipp://foo.bar.com/printers/LaserJet&quot;.</P><P>In addition, the CUPS server also supports normal browser access to
&quot;method://hostname:port/admin/&quot;, &quot;method://hostname:port/classes/&quot;,
&quot;method://hostname:port/jobs/&quot;, and &quot;method://hostname:port/printers/&quot;
to view and manage resources on the server dynamically.</P><H2><A NAME="3_2">3.2 CUPS IPP Operations</A></H2><P>CUPS provides 13 extension operations in addition to most of the
standard IPP and registered extension operations:
<CENTER><TABLE BORDER WIDTH="80%"><TR><TH VALIGN="TOP">Operation Name</TH><TH VALIGN="TOP">CUPS</TH><TH VALIGN="TOP">
Code</TH><TH VALIGN="TOP">Brief Description</TH></TR><TR><TD VALIGN="TOP">Print-Job</TD><TD VALIGN="TOP">1.0</TD><TD VALIGN="TOP">
0x0002</TD><TD VALIGN="TOP">Print a file.</TD></TR><TR><TD VALIGN="TOP">Validate-Job</TD><TD VALIGN="TOP">1.0</TD><TD VALIGN="TOP">
0x0004</TD><TD VALIGN="TOP">Validate job attributes.</TD></TR><TR><TD VALIGN="TOP">Create-Job</TD><TD VALIGN="TOP">1.1</TD><TD VALIGN="TOP">
0x0005</TD><TD VALIGN="TOP">Create a print job.</TD></TR><TR><TD VALIGN="TOP">Send-Document</TD><TD VALIGN="TOP">1.1</TD><TD VALIGN="TOP">
0x0006</TD><TD VALIGN="TOP">Send a file for a print job.</TD></TR><TR><TD VALIGN="TOP">Cancel-Job</TD><TD VALIGN="TOP">1.0</TD><TD VALIGN="TOP">
0x0008</TD><TD VALIGN="TOP">Cancel a print job.</TD></TR><TR><TD VALIGN="TOP">Get-Job-Attributes</TD><TD VALIGN="TOP">1.0</TD><TD VALIGN="TOP">
0x0009</TD><TD VALIGN="TOP">Get job attributes.</TD></TR><TR><TD VALIGN="TOP">Get-Jobs</TD><TD VALIGN="TOP">1.0</TD><TD VALIGN="TOP">
0x000A</TD><TD VALIGN="TOP">Get all jobs.</TD></TR><TR><TD VALIGN="TOP">Get-Printer-Attributes</TD><TD VALIGN="TOP">1.0</TD><TD
VALIGN="TOP">0x000B</TD><TD VALIGN="TOP">Get printer attributes.</TD></TR><TR><TD VALIGN="TOP">Hold-Job</TD><TD VALIGN="TOP">1.1</TD><TD VALIGN="TOP">
0x000C</TD><TD VALIGN="TOP">Hold a job for printing.</TD></TR><TR><TD VALIGN="TOP">Release-Job</TD><TD VALIGN="TOP">1.1</TD><TD VALIGN="TOP">
0x000D</TD><TD VALIGN="TOP">Release a job for printing.</TD></TR><TR><TD VALIGN="TOP">Pause-Printer</TD><TD VALIGN="TOP">1.0</TD><TD VALIGN="TOP">
0x0010</TD><TD VALIGN="TOP">Pause printing on a printer.</TD></TR><TR><TD VALIGN="TOP">Resume-Printer</TD><TD VALIGN="TOP">1.0</TD><TD VALIGN="TOP">
0x0011</TD><TD VALIGN="TOP">Resume printing on a printer.</TD></TR><TR><TD VALIGN="TOP">Purge-Jobs</TD><TD VALIGN="TOP">1.0</TD><TD VALIGN="TOP">
0x0012</TD><TD VALIGN="TOP">Purge all jobs.</TD></TR><TR><TD VALIGN="TOP">Set-Job-Attributes</TD><TD VALIGN="TOP">1.1</TD><TD VALIGN="TOP">
0x0014</TD><TD VALIGN="TOP">Set attributes for a pending or held job.</TD></TR><TR><TD VALIGN="TOP">CUPS-Get-Default</TD><TD VALIGN="TOP">1.0</TD><TD VALIGN="TOP">
0x4001</TD><TD VALIGN="TOP">Get the default destination.</TD></TR><TR><TD VALIGN="TOP">CUPS-Get-Printers</TD><TD VALIGN="TOP">1.0</TD><TD VALIGN="TOP">
0x4002</TD><TD VALIGN="TOP">Get all of the available printers.</TD></TR><TR><TD VALIGN="TOP">CUPS-Add-Modify-Printer</TD><TD VALIGN="TOP">1.0</TD><TD
VALIGN="TOP">0x4003</TD><TD VALIGN="TOP">Add or modify a printer.</TD></TR><TR><TD VALIGN="TOP">CUPS-Delete-Printer</TD><TD VALIGN="TOP">1.0</TD><TD
VALIGN="TOP">0x4004</TD><TD VALIGN="TOP">Delete a printer.</TD></TR><TR><TD VALIGN="TOP">CUPS-Get-Classes</TD><TD VALIGN="TOP">1.0</TD><TD VALIGN="TOP">
0x4005</TD><TD VALIGN="TOP">Get all of the available printer classes.</TD></TR><TR><TD VALIGN="TOP">CUPS-Add-Modify-Class</TD><TD VALIGN="TOP">1.0</TD><TD
VALIGN="TOP">0x4006</TD><TD VALIGN="TOP">Add or modify a printer class.</TD></TR><TR><TD VALIGN="TOP">CUPS-Delete-Class</TD><TD VALIGN="TOP">1.0</TD><TD VALIGN="TOP">
0x4007</TD><TD VALIGN="TOP">Delete a printer class.</TD></TR><TR><TD VALIGN="TOP">CUPS-Accept-Jobs</TD><TD VALIGN="TOP">1.0</TD><TD VALIGN="TOP">
0x4008</TD><TD VALIGN="TOP">Accept jobs on a printer or printer class.</TD></TR><TR><TD VALIGN="TOP">CUPS-Reject-Jobs</TD><TD VALIGN="TOP">1.0</TD><TD VALIGN="TOP">
0x4009</TD><TD VALIGN="TOP">Reject jobs on a printer or printer class.</TD></TR><TR><TD VALIGN="TOP">CUPS-Set-Default</TD><TD VALIGN="TOP">1.0</TD><TD VALIGN="TOP">
0x400A</TD><TD VALIGN="TOP">Set the default destination.</TD></TR><TR><TD VALIGN="TOP">CUPS-Get-Devices</TD><TD VALIGN="TOP">1.1</TD><TD VALIGN="TOP">
0x400B</TD><TD VALIGN="TOP">Get all of the available devices.</TD></TR><TR><TD VALIGN="TOP">CUPS-Get-PPDs</TD><TD VALIGN="TOP">1.1</TD><TD VALIGN="TOP">
0x400C</TD><TD VALIGN="TOP">Get all of the available PPDs.</TD></TR><TR><TD VALIGN="TOP">CUPS-Move-Job</TD><TD VALIGN="TOP">1.1</TD><TD VALIGN="TOP">
0x400D</TD><TD VALIGN="TOP">Move a job to a different printer.</TD></TR></TABLE></CENTER></P><H1><A NAME="4">4 Operations</A></H1><P>The following sections describe the operations supported by CUPS. In
the interest of brevity, operations which use only the standard IPP
attributes are not described.</P><H2><A NAME="4_1">4.1 Print-Job Operation</A></H2><P>The Print-Job operation (0x0002) prints a file.</P><H3><A NAME="4_1_1">4.1.1 Print-Job Request</A></H3><P>The following groups of attributes are supplied as part of the
Print-Job request:</P><P>Group 1: Operation Attributes</P><UL><P>Natural Language and Character Set:</P><P>The &quot;attributes-charset&quot; and &quot;attributes-natural-language&quot; attributes
as described in section 3.1.4.1 of the IPP Model and Semantics
document.</P><P>&quot;printer-uri&quot; (uri):</P><P>The client MUST supply a URI for the specified printer.</P></UL><P>Group 2: Job Template Attributes</P><UL><P>&quot;job-billing&quot; (text(MAX)):</P><P><I>(CUPS 1.1 and higher)</I></P><P>The client OPTIONALLY supplies a billing string that is logged with
the page accounting information.</P><P>&quot;job-sheets&quot; (1setof type3 keyword | name(MAX)):</P><P><I>(CUPS 1.1 and higher)</I></P><P>The client OPTIONALLY supplies one or two banner pages that are
printed before and after any files in the print job. The name of &quot;none&quot;
is reserved to indicate that no banner page should be printed. If the
client does not specify this attribute then the value of the
&quot;job-sheets-default&quot; printer object attribute is used.</P><P><B>Note:</B> Standard IPP only allows specification of a single
job-sheets attribute value.</P><P>&quot;media&quot; (1setof type3 keyword | name(MAX)):</P><P>The client OPTIONALLY supplies one or more media attributes
specifying the size, type, source, and color of the output media. If
the client does not specify this attribute then the value of the
&quot;media-default&quot; printer object attribute is used.</P><P><B>Note:</B> Standard IPP only allows specification of a single media
attribute value.</P><P>Other Job Template Attributes</P></UL><P>The Print-Job request is followed by a file to be printed.</P><H3><A NAME="4_1_2">4.1.2 Print-Job Response</A></H3><P>The following groups of attributes are send as part of the Print-Job
Response:</P><P>Group 1: Operation Attributes</P><UL><P>Status Message:</P><P>The standard response status message.</P><P>Natural Language and Character Set:</P><P>The &quot;attributes-charset&quot; and &quot;attributes-natural-language&quot; attributes
as described in section 3.1.4.2 of the IPP Model and Semantics
document.</P></UL><P>Group 2: Job Attributes</P><UL><P>Standard Job Attributes</P></UL><H2><A NAME="4_2">4.2 Create-Job Operation</A></H2><P>The Create-Job operation (0x0005) creates a new, empty print job.</P><H3><A NAME="4_2_1">4.2.1 Create-Job Request</A></H3><P>The following groups of attributes are supplied as part of the
Create-Job request:</P><P>Group 1: Operation Attributes</P><UL><P>Natural Language and Character Set:</P><P>The &quot;attributes-charset&quot; and &quot;attributes-natural-language&quot; attributes
as described in section 3.1.4.1 of the IPP Model and Semantics
document.</P><P>&quot;printer-uri&quot; (uri):</P><P>The client MUST supply a URI for the specified printer.</P></UL><P>Group 2: Job Template Attributes</P><UL><P>&quot;job-billing&quot; (text(MAX)):</P><P><I>(CUPS 1.1 and higher)</I></P><P>The client OPTIONALLY supplies a billing string that is logged with
the page accounting information.</P><P>&quot;job-sheets&quot; (1setof type3 keyword | name(MAX)):</P><P><I>(CUPS 1.1 and higher)</I></P><P>The client OPTIONALLY supplies one or two banner pages that are
printed before and after any files in the print job. The name of &quot;none&quot;
is reserved to indicate that no banner page should be printed. If the
client does not specify this attribute then the value of the
&quot;job-sheets-default&quot; printer object attribute is used.</P><P><B>Note:</B> Standard IPP only allows specification of a single
job-sheets attribute value.</P><P>&quot;media&quot; (1setof type3 keyword | name(MAX)):</P><P>The client OPTIONALLY supplies one or more media attributes
specifying the size, type, source, and color of the output media. If
the client does not specify this attribute then the value of the
&quot;media-default&quot; printer object attribute is used.</P><P><B>Note:</B> Standard IPP only allows specification of a single media
attribute value.</P><P>Standard Job Template Attributes</P></UL><H3><A NAME="4_2_2">4.2.2 Create-Job Response</A></H3><P>The following groups of attributes are send as part of the Create-Job
Response:</P><P>Group 1: Operation Attributes</P><UL><P>Status Message:</P><P>The standard response status message.</P><P>Natural Language and Character Set:</P><P>The &quot;attributes-charset&quot; and &quot;attributes-natural-language&quot; attributes
as described in section 3.1.4.2 of the IPP Model and Semantics
document.</P></UL><P>Group 2: Job Attributes</P><UL><P>Standard Job Attributes</P></UL><H2><A NAME="4_3">4.3 Set-Job-Attributes Operation</A></H2><P>The Set-Job-Attributes operation (0x0014) changes the attributes of
an active (not completed) job.</P><H3><A NAME="4_3_1">4.3.1 Set-Job-Attributes Request</A></H3><P>The following groups of attributes are supplied as part of the
Set-Job-Attributes request:</P><P>Group 1: Operation Attributes</P><UL><P>Natural Language and Character Set:</P><P>The &quot;attributes-charset&quot; and &quot;attributes-natural-language&quot; attributes
as described in section 3.1.4.1 of the IPP Model and Semantics
document.</P><P>&quot;printer-uri&quot; (uri) and &quot;job-id&quot; (integer)</P><P><I>OR</I></P><P>&quot;job-uri&quot;:</P><P>The client MUST supply a URI for the specified printer and a job ID
number, or the job URI.</P></UL><P>Group 2: Job Template Attributes</P><UL><P>&quot;job-sheets&quot; (1setof type3 keyword | name(MAX)):</P><P><I>(CUPS 1.1 and higher)</I></P><P>The client OPTIONALLY supplies one or two banner pages that are
printed before and after any files in the print job. The name of &quot;none&quot;
is reserved to indicate that no banner page should be printed. If the
client does not specify this attribute then the value of the
&quot;job-sheets-default&quot; printer object attribute is used.</P><P><B>Note:</B> Standard IPP only allows specification of a single
job-sheets attribute value.</P><P>&quot;media&quot; (1setof type3 keyword | name(MAX)):</P><P>The client OPTIONALLY supplies one or more media attributes
specifying the size, type, source, and color of the output media. If
the client does not specify this attribute then the value of the
&quot;media-default&quot; printer object attribute is used.</P><P><B>Note:</B> Standard IPP only allows specification of a single media
attribute value.</P><P>Other Job Template Attributes</P></UL><H3><A NAME="4_3_2">4.3.2 Set-Job-Attributes Response</A></H3><P>The following groups of attributes are send as part of the
Set-Job-Attributes Response:</P><P>Group 1: Operation Attributes</P><UL><P>Status Message:</P><P>The standard response status message.</P><P>Natural Language and Character Set:</P><P>The &quot;attributes-charset&quot; and &quot;attributes-natural-language&quot; attributes
as described in section 3.1.4.2 of the IPP Model and Semantics
document.</P></UL><H2><A NAME="4_4">4.4 CUPS-Get-Default Operation</A></H2><P>The CUPS-Get-Default operation (0x4001) returns the default printer
URI and attributes.</P><H3><A NAME="4_4_1">4.4.1 CUPS-Get-Default Request</A></H3><P>The following groups of attributes are supplied as part of the
CUPS-Get-Default request:</P><P>Group 1: Operation Attributes</P><UL><P>Natural Language and Character Set:</P><P>The &quot;attributes-charset&quot; and &quot;attributes-natural-language&quot; attributes
as described in section 3.1.4.1 of the IPP Model and Semantics
document.</P><P>&quot;requested-attributes&quot; (1setOf keyword) :</P><P>The client OPTIONALLY supplies a set of attribute names and/or
attribute group names in whose values the requester is interested. If
the client omits this attribute, the server responds as if this
attribute had been supplied with a value of 'all'.</P></UL><H3><A NAME="4_4_2">4.4.2 CUPS-Get-Default Response</A></H3><P>The following groups of attributes are send as part of the
CUPS-Get-Default Response:</P><P>Group 1: Operation Attributes</P><UL><P>Status Message:</P><P>The standard response status message.</P><P>Natural Language and Character Set:</P><P>The &quot;attributes-charset&quot; and &quot;attributes-natural-language&quot; attributes
as described in section 3.1.4.2 of the IPP Model and Semantics
document.</P></UL><P>Group 2: Printer Object Attributes</P><UL><P>The set of requested attributes and their current values.</P></UL><H2><A NAME="4_5">4.5 CUPS-Get-Printers Operation</A></H2><P>The CUPS-Get-Printers operation (0x4002) returns the printer
attributes for every printer known to the system. This may include
printers that are not served directly by the server.</P><H3><A NAME="4_5_1">4.5.1 CUPS-Get-Printers Request</A></H3><P>The following groups of attributes are supplied as part of the
CUPS-Get-Printers request:</P><P>Group 1: Operation Attributes</P><UL><P>Natural Language and Character Set:</P><P>The &quot;attributes-charset&quot; and &quot;attributes-natural-language&quot; attributes
as described in section 3.1.4.1 of the IPP Model and Semantics
document.</P><P>&quot;limit&quot; (integer (1:MAX)):</P><P>The client OPTIONALLY supplies this attribute limiting the number of
printers that are returned.</P><P>&quot;printer-info&quot; (text(127)):</P><P><I>(CUPS 1.1 and higher)</I></P><P>The client OPTIONALLY supplies this attribute to select which
printers are returned.</P><P>&quot;printer-location&quot; (text(127)):</P><P><I>(CUPS 1.1 and higher)</I></P><P>The client OPTIONALLY supplies this attribute to select which
printers are returned.</P><P>&quot;printer-type&quot; (type2 enum):</P><P><I>(CUPS 1.1 and higher)</I></P><P>The client OPTIONALLY supplies a printer type enumeration to select
which printers are returned.</P><P>&quot;printer-type-mask&quot; (type2 enum):</P><P><I>(CUPS 1.1 and higher)</I></P><P>The client OPTIONALLY supplies a printer type mask enumeration to
select which bits are used in the &quot;printer-type&quot; attribute.</P><P>&quot;requested-attributes&quot; (1setOf keyword) :</P><P>The client OPTIONALLY supplies a set of attribute names and/or
attribute group names in whose values the requester is interested. If
the client omits this attribute, the server responds as if this
attribute had been supplied with a value of 'all'.</P></UL><H3><A NAME="4_5_2">4.5.2 CUPS-Get-Printers Response</A></H3><P>The following groups of attributes are send as part of the
CUPS-Get-Printers Response:</P><P>Group 1: Operation Attributes</P><UL><P>Status Message:</P><P>The standard response status message.</P><P>Natural Language and Character Set:</P><P>The &quot;attributes-charset&quot; and &quot;attributes-natural-language&quot; attributes
as described in section 3.1.4.2 of the IPP Model and Semantics
document.</P></UL><P>Group 2: Printer Object Attributes</P><UL><P>The set of requested attributes and their current values for each
printer.</P></UL><H2><A NAME="4_6">4.6 CUPS-Add-Modify-Printer Operation</A></H2><P>The CUPS-Add-Modify-Printer operation (0x4003) adds a new printer or
modifies an existing printer on the system.</P><H3><A NAME="4_6_1">4.6.1 CUPS-Add-Modify-Printer Request</A></H3><P>The following groups of attributes are supplied as part of the
CUPS-Add-Modify-Printer request:</P><P>Group 1: Operation Attributes</P><UL><P>Natural Language and Character Set:</P><P>The &quot;attributes-charset&quot; and &quot;attributes-natural-language&quot; attributes
as described in section 3.1.4.1 of the IPP Model and Semantics
document.</P><P>&quot;printer-uri&quot; (uri):</P><P>The client MUST supply a URI for the specified printer.</P></UL><P>Group 2: Printer Object Attributes</P><UL><P>&quot;banner-end-default&quot; (name(127)):</P><P><I>(CUPS 1.1 and higher)</I></P><P>The client OPTIONALLY supplies a banner page name that is printed
after files in a job. The reserved name &quot;none&quot; is used to specify that
no banner page should be printed.</P><P>&quot;banner-start-default&quot; (name(127)):</P><P><I>(CUPS 1.1 and higher)</I></P><P>The client OPTIONALLY supplies a banner page name that is printed
before files in a job. The reserved name &quot;none&quot; is used to specify that
no banner page should be printed.</P><P>&quot;device-uri&quot; (uri):</P><P>The client OPTIONALLY supplies a device URI for the specified
printer.</P><P>&quot;ppd-name&quot; (name(127)):</P><P>The client OPTIONALLY supplies a PPD name for the specified printer.</P><P>&quot;printer-is-accepting-jobs&quot; (boolean):</P><P>The client OPTIONALLY supplies this boolean attribute indicating
whether or not the printer object should accept new jobs.</P><P>&quot;printer-info&quot; (text(127)):</P><P>The client OPTIONALLY supplies this attribute indicating the printer
information string.</P><P>&quot;printer-location&quot; (text(127)):</P><P>The client OPTIONALLY supplies this attribute indicating a textual
location of the printer.</P><P>&quot;printer-more-info&quot; (uri):</P><P>The client OPTIONALLY supplies this attribute indicating a URI for
additional printer information.</P><P>&quot;printer-state&quot; (type2 enum):</P><P>The client OPTIONALLY supplies this attribute indicating the
initial/current state of the printer. Only the &quot;idle&quot; and &quot;stopped&quot;
enumerations are recognized.</P><P>&quot;printer-state-message&quot; (text(MAX)):</P><P>The client OPTIONALLY supplies this attribute indicating a textual
reason for the current printer state.</P><P>&quot;requesting-user-name-allowed&quot; (1setof name(127) | delete)</P><P><I>OR</I></P><P>&quot;requesting-user-name-denied&quot; (1setof name(127) | delete):</P><P>The client OPTIONALLY supplies one of these attributes to specify an
access control list for incoming print jobs. To allow all users access
to a printer, use the delete tag for the attribute value.</P></UL><P>The CUPS-Add-Modify-Printer request can optionally be followed by a
PPD file or System V interface script to be used for the printer. The
&quot;ppd-name&quot; attribute overrides any file that is attached to the end of
the request with a local CUPS PPD file.</P><H3><A NAME="4_6_2">4.6.2 CUPS-Add-Modify-Printer Response</A></H3><P>The following groups of attributes are send as part of the
CUPS-Add-Modify-Printer Response:</P><P>Group 1: Operation Attributes</P><UL><P>Status Message:</P><P>The standard response status message.</P><P>Natural Language and Character Set:</P><P>The &quot;attributes-charset&quot; and &quot;attributes-natural-language&quot; attributes
as described in section 3.1.4.2 of the IPP Model and Semantics
document.</P></UL><H2><A NAME="4_7">4.7 CUPS-Delete-Printer Operation</A></H2><P>The CUPS-Delete-Printer operation (0x4004) removes an existing
printer from the system.</P><H3><A NAME="4_7_1">4.7.1 CUPS-Delete-Printer Request</A></H3><P>The following groups of attributes are supplied as part of the
CUPS-Delete-Printer request:</P><P>Group 1: Operation Attributes</P><UL><P>Natural Language and Character Set:</P><P>The &quot;attributes-charset&quot; and &quot;attributes-natural-language&quot; attributes
as described in section 3.1.4.1 of the IPP Model and Semantics
document.</P><P>&quot;printer-uri&quot; (uri):</P><P>The client MUST supply a URI for the specified printer.</P></UL><H3><A NAME="4_7_2">4.7.2 CUPS-Delete-Printer Response</A></H3><P>The following groups of attributes are send as part of the
CUPS-Delete-Printer Response:</P><P>Group 1: Operation Attributes</P><UL><P>Status Message:</P><P>The standard response status message.</P><P>Natural Language and Character Set:</P><P>The &quot;attributes-charset&quot; and &quot;attributes-natural-language&quot; attributes
as described in section 3.1.4.2 of the IPP Model and Semantics
document.</P></UL><H2><A NAME="4_8">4.8 CUPS-Get-Classes Operation</A></H2><P>The CUPS-Get-Classes operation (0x4005) returns the printer
attributes for every printer class known to the system. This may
include printer classes that are not served directly by the server.</P><H3><A NAME="4_8_1">4.8.1 CUPS-Get-Classes Request</A></H3><P>The following groups of attributes are supplied as part of the
CUPS-Get-Classes request:</P><P>Group 1: Operation Attributes</P><UL><P>Natural Language and Character Set:</P><P>The &quot;attributes-charset&quot; and &quot;attributes-natural-language&quot; attributes
as described in section 3.1.4.1 of the IPP Model and Semantics
document.</P><P>&quot;limit&quot; (integer (1:MAX)):</P><P>The client OPTIONALLY supplies this attribute limiting the number of
printer classes that are returned.</P><P>&quot;printer-info&quot; (text(127)):</P><P><I>(CUPS 1.1 and higher)</I></P><P>The client OPTIONALLY supplies this attribute to select which printer
classes are returned.</P><P>&quot;printer-location&quot; (text(127)):</P><P><I>(CUPS 1.1 and higher)</I></P><P>The client OPTIONALLY supplies this attribute to select which printer
classes are returned.</P><P>&quot;printer-type&quot; (type2 enum):</P><P><I>(CUPS 1.1 and higher)</I></P><P>The client OPTIONALLY supplies a printer type enumeration to select
which printer classes are returned.</P><P>&quot;printer-type-mask&quot; (type2 enum):</P><P><I>(CUPS 1.1 and higher)</I></P><P>The client OPTIONALLY supplies a printer type mask enumeration to
select which bits are used in the &quot;printer-type&quot; attribute.</P><P>&quot;requested-attributes&quot; (1setOf keyword) :</P><P>The client OPTIONALLY supplies a set of attribute names and/or
attribute group names in whose values the requester is interested. If
the client omits this attribute, the server responds as if this
attribute had been supplied with a value of 'all'.</P></UL><H3><A NAME="4_8_2">4.8.2 CUPS-Get-Classes Response</A></H3><P>The following groups of attributes are send as part of the
CUPS-Get-Classes Response:</P><P>Group 1: Operation Attributes</P><UL><P>Status Message:</P><P>The standard response status message.</P><P>Natural Language and Character Set:</P><P>The &quot;attributes-charset&quot; and &quot;attributes-natural-language&quot; attributes
as described in section 3.1.4.2 of the IPP Model and Semantics
document.</P></UL><P>Group 2: Printer Class Object Attributes</P><UL><P>The set of requested attributes and their current values for each
printer class.</P></UL><H2><A NAME="4_9">4.9 CUPS-Add-Modify-Class Operation</A></H2><P>The CUPS-Add-Modify-Class operation (0x4006) adds a new printer class
or modifies and existing printer class on the system.</P><H3><A NAME="4_9_1">4.9.1 CUPS-Add-Modify-Class Request</A></H3><P>The following groups of attributes are supplied as part of the
CUPS-Add-Modify-Class request:</P><P>Group 1: Operation Attributes</P><UL><P>Natural Language and Character Set:</P><P>The &quot;attributes-charset&quot; and &quot;attributes-natural-language&quot; attributes
as described in section 3.1.4.1 of the IPP Model and Semantics
document.</P><P>&quot;printer-uri&quot; (uri):</P><P>The client MUST supply a URI for the specified printer class.</P></UL><P>Group 2: Printer Object Attributes</P><UL><P>&quot;member-uris&quot; (1setof uri):</P><P>The client OPTIONALLY supplies the &quot;member-uris&quot; set specifying the
printers and printer classes that are part of the class.</P><P>&quot;printer-is-accepting-jobs&quot; (boolean):</P><P>The client OPTIONALLY supplies this boolean attribute indicating
whether or not the class object should accept new jobs.</P><P>&quot;printer-info&quot; (text(127)):</P><P>The client OPTIONALLY supplies this attribute indicating the printer
information string.</P><P>&quot;printer-location&quot; (text(127)):</P><P>The client OPTIONALLY supplies this attribute indicating a textual
location of the class.</P><P>&quot;printer-more-info&quot; (uri):</P><P>The client OPTIONALLY supplies this attribute indicating a URI for
additional class information.</P><P>&quot;printer-state&quot; (type2 enum):</P><P>The client OPTIONALLY supplies this attribute indicating the
initial/current state of the class. Only the &quot;idle&quot; and &quot;stopped&quot;
enumerations are recognized.</P><P>&quot;printer-state-message&quot; (text(MAX)):</P><P>The client OPTIONALLY supplies this attribute indicating a textual
reason for the current class state.</P><P>&quot;requesting-user-name-allowed&quot; (1setof name(127))</P><P><I>OR</I></P><P>&quot;requesting-user-name-denied&quot; (1setof name(127)):</P><P>The client OPTIONALLY supplies one of these attributes to specify an
access control list for incoming print jobs. To allow all users access
to a class, use the delete tag for the attribute value.</P></UL><H3><A NAME="4_9_2">4.9.2 CUPS-Add-Modify-Class Response</A></H3><P>The following groups of attributes are send as part of the
CUPS-Add-Modify-Class Response:</P><P>Group 1: Operation Attributes</P><UL><P>Status Message:</P><P>The standard response status message.</P><P>Natural Language and Character Set:</P><P>The &quot;attributes-charset&quot; and &quot;attributes-natural-language&quot; attributes
as described in section 3.1.4.2 of the IPP Model and Semantics
document.</P></UL><H2><A NAME="4_10">4.10 CUPS-Delete-Class Operation</A></H2><P>The CUPS-Delete-Class operation (0x4007) removes an existing printer
class from the system.</P><H3><A NAME="4_10_1">4.10.1 CUPS-Delete-Class Request</A></H3><P>The following groups of attributes are supplied as part of the
CUPS-Delete-Class request:</P><P>Group 1: Operation Attributes</P><UL><P>Natural Language and Character Set:</P><P>The &quot;attributes-charset&quot; and &quot;attributes-natural-language&quot; attributes
as described in section 3.1.4.1 of the IPP Model and Semantics
document.</P><P>&quot;printer-uri&quot; (uri):</P><P>The client MUST supply a URI for the specified printer class.</P></UL><H3><A NAME="4_10_2">4.10.2 CUPS-Delete-Class Response</A></H3><P>The following groups of attributes are send as part of the
CUPS-Delete-Class Response:</P><P>Group 1: Operation Attributes</P><UL><P>Status Message:</P><P>The standard response status message.</P><P>Natural Language and Character Set:</P><P>The &quot;attributes-charset&quot; and &quot;attributes-natural-language&quot; attributes
as described in section 3.1.4.2 of the IPP Model and Semantics
document.</P></UL><H2><A NAME="4_11">4.11 CUPS-Accept-Jobs Operation</A></H2><P>The CUPS-Accept-Jobs operation (0x4008) sets the
&quot;printer-is-accepting-jobs&quot; attribute to true for the specified printer
or printer class.</P><H3><A NAME="4_11_1">4.11.1 CUPS-Accept-Jobs Request</A></H3><P>The following groups of attributes are supplied as part of the
CUPS-Accept-Jobs request:</P><P>Group 1: Operation Attributes</P><UL><P>Natural Language and Character Set:</P><P>The &quot;attributes-charset&quot; and &quot;attributes-natural-language&quot; attributes
as described in section 3.1.4.1 of the IPP Model and Semantics
document.</P><P>&quot;printer-uri&quot; (uri):</P><P>The client MUST supply a URI for the specified printer or printer
class.</P></UL><H3><A NAME="4_11_2">4.11.2 CUPS-Accept-Jobs Response</A></H3><P>The following groups of attributes are send as part of the
CUPS-Accept-Jobs Response:</P><P>Group 1: Operation Attributes</P><UL><P>Status Message:</P><P>The standard response status message.</P><P>Natural Language and Character Set:</P><P>The &quot;attributes-charset&quot; and &quot;attributes-natural-language&quot; attributes
as described in section 3.1.4.2 of the IPP Model and Semantics
document.</P></UL><H2><A NAME="4_12">4.12 CUPS-Reject-Jobs Operation</A></H2><P>The CUPS-Reject-Jobs operation (0x4009) sets
the&quot;printer-is-accepting-jobs&quot; attribute to false for the specified
printer or printer class.</P><H3><A NAME="4_12_1">4.12.1 CUPS-Reject-Jobs Request</A></H3><P>The following groups of attributes are supplied as part of the
CUPS-Reject-Jobs request:</P><P>Group 1: Operation Attributes</P><UL><P>Natural Language and Character Set:</P><P>The &quot;attributes-charset&quot; and &quot;attributes-natural-language&quot; attributes
as described in section 3.1.4.1 of the IPP Model and Semantics
document.</P><P>&quot;printer-uri&quot; (uri):</P><P>The client MUST supply a URI for the specified printer or printer
class.</P></UL><P>Group 2: Printer Object Attributes</P><UL><P>&quot;printer-state-message&quot; (text(MAX)):</P><P>The client OPTIONALLY supplies this attribute indicating a textual
reason for the current printer state.</P></UL><H3><A NAME="4_12_2">4.12.2 CUPS-Reject-Jobs Response</A></H3><P>The following groups of attributes are send as part of the
CUPS-Reject-Jobs Response:</P><P>Group 1: Operation Attributes</P><UL><P>Status Message:</P><P>The standard response status message.</P><P>Natural Language and Character Set:</P><P>The &quot;attributes-charset&quot; and &quot;attributes-natural-language&quot; attributes
as described in section 3.1.4.2 of the IPP Model and Semantics
document.</P></UL><H2><A NAME="4_13">4.13 CUPS-Set-Default Operation</A></H2><P>The CUPS-Set-Default operation (0x400A) sets the default printer
destination for all clients when a resource name of &quot;/printers&quot; is
specified.</P><H3><A NAME="4_13_1">4.13.1 CUPS-Set-Default Request</A></H3><P>The following groups of attributes are supplied as part of the
CUPS-Set-Default request:</P><P>Group 1: Operation Attributes</P><UL><P>Natural Language and Character Set:</P><P>The &quot;attributes-charset&quot; and &quot;attributes-natural-language&quot; attributes
as described in section 3.1.4.1 of the IPP Model and Semantics
document.</P><P>&quot;printer-uri&quot; (uri):</P><P>The client MUST supply a URI for the specified printer or printer
class.</P></UL><H3><A NAME="4_13_2">4.13.2 CUPS-Set-Default Response</A></H3><P>The following groups of attributes are send as part of the
CUPS-Set-Default Response:</P><P>Group 1: Operation Attributes</P><UL><P>Status Message:</P><P>The standard response status message.</P><P>Natural Language and Character Set:</P><P>The &quot;attributes-charset&quot; and &quot;attributes-natural-language&quot; attributes
as described in section 3.1.4.2 of the IPP Model and Semantics
document.</P></UL><H2><A NAME="4_14">4.14 CUPS-Get-Devices Operation</A></H2><P>The CUPS-Get-Devices operation (0x400B) returns all of the supported
device-uri's for the server (CUPS 1.1 and higher).</P><H3><A NAME="4_14_1">4.14.1 CUPS-Get-Devices Request</A></H3><P>The following groups of attributes are supplied as part of the
CUPS-Get-Devices request:</P><P>Group 1: Operation Attributes</P><UL><P>Natural Language and Character Set:</P><P>The &quot;attributes-charset&quot; and &quot;attributes-natural-language&quot; attributes
as described in section 3.1.4.1 of the IPP Model and Semantics
document.</P><P>&quot;device-class&quot; (type1 keyword):</P><P>The client OPTIONALLY supplies a device class keyword to select which
devices are returned.</P><P>&quot;limit&quot; (integer (1:MAX)):</P><P>The client OPTIONALLY supplies this attribute limiting the number of
devices that are returned.</P><P>&quot;requested-attributes&quot; (1setOf keyword) :</P><P>The client OPTIONALLY supplies a set of attribute names and/or
attribute group names in whose values the requester is interested. If
the client omits this attribute, the server responds as if this
attribute had been supplied with a value of 'all'.</P></UL><H3><A NAME="4_14_2">4.14.2 CUPS-Get-Devices Response</A></H3><P>The following groups of attributes are send as part of the
CUPS-Get-Devices Response:</P><P>Group 1: Operation Attributes</P><UL><P>Status Message:</P><P>The standard response status message.</P><P>Natural Language and Character Set:</P><P>The &quot;attributes-charset&quot; and &quot;attributes-natural-language&quot; attributes
as described in section 3.1.4.2 of the IPP Model and Semantics
document.</P></UL><P>Group 2: Device Object Attributes</P><UL><P>The set of requested attributes and their current values for each
device.</P></UL><H2><A NAME="4_15">4.15 CUPS-Get-PPDs Operation</A></H2><P>The CUPS-Get-PPDs operation (0x400C) returns all of the locally
available PPD files on the system (CUPS 1.1 and higher).</P><H3><A NAME="4_15_1">4.15.1 CUPS-Get-PPDs Request</A></H3><P>The following groups of attributes are supplied as part of the
CUPS-Get-PPDs request:</P><P>Group 1: Operation Attributes</P><UL><P>Natural Language and Character Set:</P><P>The &quot;attributes-charset&quot; and &quot;attributes-natural-language&quot; attributes
as described in section 3.1.4.1 of the IPP Model and Semantics
document.</P><P>&quot;limit&quot; (integer (1:MAX)):</P><P>The client OPTIONALLY supplies this attribute limiting the number of
PPDs that are returned.</P><P>&quot;ppd-make&quot; (text(127)):</P><P>The client OPTIONALLY supplies a printer manufacturer to select which
PPDs are returned.</P><P>&quot;requested-attributes&quot; (1setOf keyword) :</P><P>The client OPTIONALLY supplies a set of attribute names and/or
attribute group names in whose values the requester is interested. If
the client omits this attribute, the server responds as if this
attribute had been supplied with a value of 'all'.</P></UL><H3><A NAME="4_15_2">4.15.2 CUPS-Get-PPDs Response</A></H3><P>The following groups of attributes are send as part of the
CUPS-Get-PPDs Response:</P><P>Group 1: Operation Attributes</P><UL><P>Status Message:</P><P>The standard response status message.</P><P>Natural Language and Character Set:</P><P>The &quot;attributes-charset&quot; and &quot;attributes-natural-language&quot; attributes
as described in section 3.1.4.2 of the IPP Model and Semantics
document.</P></UL><P>Group 2: PPD Attributes</P><UL><P>The set of requested attributes and their current values for each PPD
file.</P></UL><H2><A NAME="4_16">4.16 CUPS-Move-Job Operation</A></H2><P>The CUPS-Move-Job operation (0x400D) moves an active print job to a
different printer (CUPS 1.1 and higher).</P><H3><A NAME="4_16_1">4.16.1 CUPS-Move-Job Request</A></H3><P>The following groups of attributes are supplied as part of the
CUPS-Move-Job request:</P><P>Group 1: Operation Attributes</P><UL><P>Natural Language and Character Set:</P><P>The &quot;attributes-charset&quot; and &quot;attributes-natural-language&quot; attributes
as described in section 3.1.4.1 of the IPP Model and Semantics
document.</P><P>&quot;printer-uri&quot; (uri) and &quot;job-id&quot; (integer)</P><P><I>OR</I></P><P>&quot;job-uri&quot;:</P><P>The client MUST supply a URI for the specified printer and a job ID
number, or the job URI.</P></UL><P>Group 2: Job Template Attributes</P><UL><P>&quot;job-printer-uri&quot; (uri)</P><P>The client MUST supply a URI for a printer on the same server.</P></UL><H3><A NAME="4_16_2">4.16.2 CUPS-Move-Job Response</A></H3><P>The following groups of attributes are send as part of the
CUPS-Move-Job Response:</P><P>Group 1: Operation Attributes</P><UL><P>Status Message:</P><P>The standard response status message.</P><P>Natural Language and Character Set:</P><P>The &quot;attributes-charset&quot; and &quot;attributes-natural-language&quot; attributes
as described in section 3.1.4.2 of the IPP Model and Semantics
document.</P></UL><H1><A NAME="5">5 Attributes</A></H1><P>CUPS provides many extension attributes to support multiple devices,
PPD files, standard job filters, printers, and printer classes.</P><H2><A NAME="5_1">5.1 Device Attributes</A></H2><P>Device attributes are returned by the CUPS-Get-Devices operation and
enumerate all of the available hardware devices and network protocols
that are supported by the server.</P><H3><A NAME="5_1_1">5.1.1 device-class (type2 keyword)</A></H3><P>The device-class attribute specifies the class of device and can be
one of the following:</P><UL><LI>&quot;file&quot; - a disk file.</LI><LI>&quot;direct&quot; - a parallel or fixed-rate serial data port, currently used
for Centronics, IEEE-1284, and USB printer ports.</LI><LI>&quot;serial&quot; - a variable-rate serial port.</LI><LI>&quot;network&quot; - a network connection, typically via AppSocket, HTTP,
IPP, LPD, or SMB/CIFS protocols.</LI></UL><H3><A NAME="5_1_2">5.1.2 device-info (text(127))</A></H3><P>The device-info attribute specifies a human-readable string
describing the device, e.g. &quot;Parallel Port #1&quot;.</P><H3><A NAME="5_1_3">5.1.3 device-make-and-model (text(127))</A></H3><P>The device-makr-and-model attribute specifies a device identification
string provided by the printer connected to the device. If the device
or printer does not support identification then this attribute contains
the string &quot;unknown&quot;.</P><H3><A NAME="5_1_4">5.1.4 device-uri (uri)</A></H3><P>The device-uri attribute specifies a unique identifier for the
device. The actual format of the device-uri string depends on the value
of the device-class attribute:</P><UL><LI>&quot;file&quot; - The device-uri will be of the form
&quot;file:/path/to/filename&quot;.</LI><LI>&quot;direct&quot; - The device-uri will be of the form
&quot;method:/dev/filename&quot;, where method may be &quot;parallel&quot; or &quot;usb&quot; in the
current implementation.</LI><LI>&quot;serial&quot; - The device-uri will be of the form
&quot;serial:/dev/filename?baud=value+parity=value+flow=value&quot;. The baud
value is the data rate in bits per second; the supported values depend
on the underlying hardware. The parity value can be one of &quot;none&quot;,
&quot;even&quot;, or &quot;odd&quot;. The flow value can be one of &quot;none&quot;, &quot;soft&quot; (XON/XOFF
handshaking), &quot;hard&quot; or &quot;rts/cts&quot; (RTS/CTS handshaking), or &quot;dtrdsr&quot;
(DTR/DSR handshaking).
<P>The URI returned by CUPS-Get-Devices will contain the maximum baud
rate supported by the device and the best type of flow control
available (&quot;soft&quot; or &quot;hard&quot;).</P><LI>&quot;network&quot; - The device-uri will be of the form
&quot;method://[username:password@]hostname[:port]/[resource]&quot;, where method
may be &quot;http&quot;, &quot;ipp&quot;, &quot;lpd&quot;, &quot;smb&quot;, or &quot;socket&quot; in the current
implementation.
<P>The URI returned by CUPS-Get-Devices will only contain the method
name followed by two slashes (&quot;method://&quot;). It is up to the client
application to add the appropriate host and other information when
adding a new printer.</P><P>The URI returned by Get-Printer-Attributes and CUPS-Get-Printers has
any username and password information stripped; the information is
still stored and used by the server internally to perform any needed
authentication.</P></LI></LI></UL><H2><A NAME="5_2">5.2 Job Template Attributes</A></H2><H3><A NAME="5_2_1">5.2.1 blackplot (boolean)</A></H3><P>The blackplot attribute specifies whether HP-GL/2 plot files should
be rendered entirely in black ink (blackplot=true) or using the colors
and shades specified in the file (blackplot=false). The default value
is false.</P><H3><A NAME="5_2_2">5.2.2 brightness (integer(0:200))</A></H3><P>The brightness attribute specifies the overall brightness of the
printed output in percent. A brightness of 100 is normal, while 200 is
twice as bright and 50 is half as bright. The default value is 100.</P><P>Brightness is applied to the Cyan, Magenta, Yellow, and Black values
using the function &quot;f(x) = brightness / 100 * x&quot;.</P><H3><A NAME="5_2_3">5.2.3 columns (integer(1:4))</A></H3><P>The columns attribute specifies the number of columns to generate
when printing text files. The default value is 1.</P><H3><A NAME="5_2_4">5.2.4 cpi (type2 enum)</A></H3><P>The cpi attribute specifies the number of characters per inch when
printing text files. Only the values 10, 12, and 17 are currently
supported. The default value is 10.</P><H3><A NAME="5_2_5">5.2.5 fitplot (boolean)</A></H3><P>The fitplot attribute specifies whether to scale HP-GL/2 plot files
to fit on the selected media (fitplot=true) or use the physical scale
specified in the plot file (fitplot=false). The default value is false.</P><H3><A NAME="5_2_6">5.2.6 gamma (integer(1:10000))</A></H3><P>The gamma attribute specifies the luminance correction for the
output. A value of 1000 specifies no correction, while values of 2000
and 500 will generate lighter and darker output, respectively. The
default value is 1000.</P><P>Gamma is applied to the Red, Green, and Blue values (or luminance for
grayscale output) using the function &quot;f(x) = x<SUP>(1000/gamma)</SUP>&quot;.</P><H3><A NAME="5_2_7">5.2.7 hue (integer(-180:180))</A></H3><P>The hue attribute specifies a color hue rotation when printing image
files. The default value is 0.</P><H3><A NAME="5_2_8">5.2.8 job-billing (text(MAX))</A></H3><P><I>(CUPS 1.1 and higher)</I></P><P>The job-billing attribute provides a text value to associate with a
job for billing purposes.</P><H3><A NAME="5_2_9">5.2.9 job-hold-until (keyword | name(MAX))</A></H3><P><I>(CUPS 1.1 and higher)</I></P><P>The job-hold-until attribute specifies a hold time. In addition to
the standard IPP/1.1 keyword names, CUPS supports name values of the
form &quot;HH:MM&quot; and &quot;HH:MM:SS&quot; that specify a hold time. The hold time is
in Greenwich Mean Time (GMT) and<I> not</I> in the local time zone. If
the specified time is less than the current time, the job is held until
the next day.</P><H3><A NAME="5_2_10">5.2.10 job-sheets (1setof type3 keyword |
name(MAX))</A></H3><P><I>(CUPS 1.1 and higher)</I></P><P>The job-sheets attribute specifies one or two banner files that are
printed before and after a job. The reserved value of &quot;none&quot; disables
banner printing. The default value is stored in the job-sheets-default
attribute.</P><P>If only one value is supplied, the banner file is printed before the
job. If two values are supplied, the first value is used as the
starting banner file and the second as the ending banner file.</P><H3><A NAME="5_2_11">5.2.11 job-originating-host-name (name(MAX))</A></H3><P><I>(CUPS 1.1.5 and higher)</I></P><P>The job-originating-host-name attribute specifies the host from which
the job was queued. The value will be the hostname or IP address of the
client depending on whether hostname resolution is enabled. The
localhost address (127.0.0.1) is<B> always</B> resolved to the name
&quot;localhost&quot;.</P><P>This attribute is read-only.</P><H3><A NAME="5_2_12">5.2.12 lpi (type2 enum)</A></H3><P>The lpi attribute specifies the number of lines per inch when
printing text files. Only the values 6 and 8 are currently supported.
The default value is 6.</P><H3><A NAME="5_2_13">5.2.13 natural-scaling (integer(1:1000))</A></H3><P><I>(CUPS 1.1.9 and higher)</I></P><P>The natural-scaling attribute specifies the scaling of image files
with respect to the natural image size. A value of 100 specifies that
the image file should exactly the natural size, while 50 is half the
natural size and 200 is twice the natural size. The default value is
100.</P><P>The ppi option can be used to override the natural resolution of the
image, which controls the natural size.</P><H3><A NAME="5_2_14">5.2.14 number-up-layout (type2 keyword)</A></H3><P><I>(CUPS 1.1.15 and higher)</I></P><P>The number-up-layout attribute specifies the order each input page is
placed on each output page. The following keywords are presently
defined:</P><UL><LI><CODE>btlr</CODE> - Bottom to top, left to right</LI><LI><CODE>btrl</CODE> - Bottom to top, right to left</LI><LI><CODE>lrbt</CODE> - Left to right, bottom to top</LI><LI><CODE>lrtb</CODE> - Left to right, top to bottom (default)</LI><LI><CODE>rlbt</CODE> - Right to left, bottom to top</LI><LI><CODE>rltb</CODE> - Right to left, top to bottom</LI><LI><CODE>tblr</CODE> - Top to bottom, left to right</LI><LI><CODE>tbrl</CODE> - Top to bottom, right to left</LI></UL><H3><A NAME="5_2_15">5.2.15 page-border (type2 keyword)</A></H3><P><I>(CUPS 1.1.15 and higher)</I></P><P>The page-border attribute specifies whether a border is draw around
each page. The following keywords are presently defined:</P><UL><LI><CODE>double</CODE> - Two hairline borders are drawn</LI><LI><CODE>double-thick</CODE> - Two 1pt borders are drawn</LI><LI><CODE>none</CODE> - No border is drawn (default)</LI><LI><CODE>single</CODE> - A single hairline border is drawn</LI><LI><CODE>single-thick</CODE> - A single 1pt border is drawn</LI></UL><H3><A NAME="5_2_16">5.2.16 page-bottom (integer(0:MAX))</A></H3><P>The page-bottom attribute specifies the bottom margin in points (72
points equals 1 inch). The default value is the device physical margin.</P><H3><A NAME="5_2_17">5.2.17 page-label (text(MAX))</A></H3><P><I>(CUPS 1.1.7 and higher)</I></P><P>The page-label attribute provides a text value to place in the header
and footer on each page. If a classification level is set on the
server, then this classification is printed before the page label.</P><H3><A NAME="5_2_18">5.2.18 page-left (integer(0:MAX))</A></H3><P>The page-left attribute specifies the left margin in points (72
points equals 1 inch). The default value is the device physical margin.</P><H3><A NAME="5_2_19">5.2.19 page-right (integer(0:MAX))</A></H3><P>The page-right attribute specifies the right margin in points (72
points equals 1 inch). The default value is the device physical margin.</P><H3><A NAME="5_2_20">5.2.20 page-set (type2 keyword)</A></H3><P>The page-set attribute specifies which pages to print in a file. The
supported keywords are &quot;all&quot;, &quot;even&quot;, and &quot;odd&quot;. The default value is
&quot;all&quot;.</P><H3><A NAME="5_2_21">5.2.21 page-top (integer(0:MAX))</A></H3><P>The page-top attribute specifies the top margin in points (72 points
equals 1 inch). The default value is the device physical margin.</P><H3><A NAME="5_2_22">5.2.22 penwidth (integer(0:MAX))</A></H3><P>The penwidth attribute specifies the default pen width in micrometers
when printing HP-GL/2 plot files. The default value is 1000 (1
millimeter).</P><H3><A NAME="5_2_23">5.2.23 position (type2 keyword)</A></H3><P>The position attribute specifies the location of image files on the
media. The following keyword values are recognized:</P><UL><LI><CODE>center</CODE> - Center the image on the page (default)</LI><LI><CODE>top</CODE> - Print the image centered at the top of the page</LI><LI><CODE>left</CODE> - Print the image centered on the left of page</LI><LI><CODE>right</CODE> - Print the image centered on the right of the
page</LI><LI><CODE>top-left</CODE> - Print the image at the top left corner of
the page</LI><LI><CODE>top-right</CODE> - Print the image at the top right corner of
the page</LI><LI><CODE>bottom</CODE> - Print the image centered at the bottom of the
page</LI><LI><CODE>bottom-left</CODE> - Print the image at the bottom left corner
of the page</LI><LI><CODE>bottom-right</CODE> - Print the image at the bottom right
corner of the page</LI></UL><H3><A NAME="5_2_24">5.2.24 ppi (integer(1:MAX))</A></H3><P>The ppi attribute specifies the resolution of an image file in pixels
per inch. The default value is the resolution included with the file or
128 if no resolution information is available.</P><H3><A NAME="5_2_25">5.2.25 prettyprint (boolean)</A></H3><P>The prettyprint attribute specifies whether text files should be
printed with a shaded header and keyword highlighting
(prettyprint=true) or without additional formatting
(prettyprint=false). The default value is false.</P><H3><A NAME="5_2_26">5.2.26 saturation (integer(0:200))</A></H3><P>The saturation attribute specifies the color saturation when printing
image files. A saturation of 100 is normal, while values of 50 and 200
will be half and twice as colorful, respectively. The default value is
100.</P><H3><A NAME="5_2_27">5.2.27 scaling (integer(1:1000))</A></H3><P>The scaling attribute specifies the scaling of image files with
respect to the selected media. A value of 100 specifies that the image
file should fit 100% of the page, or as much as possible given the
image dimensions. The default value is unspecified.</P><P>The scaling attribute overrides the ppi attribute if specified.</P><H3><A NAME="5_2_28">5.2.28 wrap (boolean)</A></H3><P>The wrap attribute specifies whether long lines should be wrapped
(wrap=true) or not (wrap=false) when printing text files. The default
value is true.</P><H2><A NAME="5_3">5.3 PPD Attributes</A></H2><H3><A NAME="5_3_1">5.3.1 ppd-natural-language (naturalLanguage)</A></H3><P>The ppd-natural-language attribute specifies the language encoding of
the PPD file (the LanguageVersion attribute in the PPD file). If the
language is unknown or undefined then &quot;en&quot; (English) is assumed.</P><H3><A NAME="5_3_2">5.3.2 ppd-make (text(127))</A></H3><P>The ppd-make attribute specifies the manufacturer of the printer (the
Manufacturer attribute in the PPD file). If the manufacturer is not
specified in the PPD file then an educated guess is made using the
NickName attribute in the PPD file.</P><H3><A NAME="5_3_3">5.3.3 ppd-make-and-model (text(127))</A></H3><P>The ppd-make-and-model attribute specifies the manufacturer and model
name of the PPD file (the NickName attribute in the PPD file). If the
make and model is not specified in the PPD file then the ModelName or
ShortNickName attributes are used instead.</P><H3><A NAME="5_3_4">5.3.4 ppd-name (name(255))</A></H3><P>The ppd-name attribute specifies the PPD filename on the server
relative to the model directory. The forward slash (/) is used to
delineate directories.</P><H2><A NAME="5_4">5.4 Printer Attributes</A></H2><H3><A NAME="5_4_1">5.4.1 job-k-limit (integer)</A></H3><P><I>(CUPS 1.1 and higher)</I></P><P>The job-k-limit attribute specifies the maximum number of kilobytes
that may be printed by a user, including banner files. The default
value of 0 specifies that there is no limit.</P><H3><A NAME="5_4_2">5.4.2 job-page-limit (integer)</A></H3><P><I>(CUPS 1.1 and higher)</I></P><P>The job-page-limit attribute specifies the maximum number of pages
that may be printed by a user, including banner files. The default
value of 0 specifies that there is no limit.</P><H3><A NAME="5_4_3">5.4.3 job-quota-period (integer)</A></H3><P><I>(CUPS 1.1 and higher)</I></P><P>The job-quota-period attribute specifies the time period used for
quota calculations, in seconds. The default value of 0 specifies that
the limits apply to all jobs that have been printed by a user that are
still known to the system.</P><H3><A NAME="5_4_4">5.4.4 job-sheets-supported (1setof type3 keyword |
name(MAX))</A></H3><P><I>(CUPS 1.1 and higher)</I></P><P>The job-sheets-supported attribute specifies the available banner
files. There will always be at least one banner file available called
&quot;none&quot;.</P><H3><A NAME="5_4_5">5.4.5 printer-type (type2 enum)</A></H3><P>The printer-type attribute specifies printer type and capability bits
for the printer or class. The default value is computed from internal
state information and the PPD file for the printer. The following bits
are defined:
<CENTER><TABLE BORDER WIDTH="80%"><TR><TH>Bit</TH><TH>Description</TH></TR><TR><TD VALIGN="TOP">0x00000001</TD><TD VALIGN="TOP">Is a printer class.</TD></TR><TR><TD VALIGN="TOP">0x00000002</TD><TD VALIGN="TOP">Is a remote
destination.</TD></TR><TR><TD VALIGN="TOP">0x00000004</TD><TD VALIGN="TOP">Can print in black.</TD></TR><TR><TD VALIGN="TOP">0x00000008</TD><TD VALIGN="TOP">Can print in color.</TD></TR><TR><TD VALIGN="TOP">0x00000010</TD><TD VALIGN="TOP">Can print on both
sides of the page in hardware.</TD></TR><TR><TD VALIGN="TOP">0x00000020</TD><TD VALIGN="TOP">Can staple output.</TD></TR><TR><TD VALIGN="TOP">0x00000040</TD><TD VALIGN="TOP">Can do fast copies
in hardware.</TD></TR><TR><TD VALIGN="TOP">0x00000080</TD><TD VALIGN="TOP">Can do fast copy
collation in hardware.</TD></TR><TR><TD VALIGN="TOP">0x00000100</TD><TD VALIGN="TOP">Can punch output.</TD></TR><TR><TD VALIGN="TOP">0x00000200</TD><TD VALIGN="TOP">Can cover output.</TD></TR><TR><TD VALIGN="TOP">0x00000400</TD><TD VALIGN="TOP">Can bind output.</TD></TR><TR><TD VALIGN="TOP">0x00000800</TD><TD VALIGN="TOP">Can sort output.</TD></TR><TR><TD VALIGN="TOP">0x00001000</TD><TD VALIGN="TOP">Can handle media up
to US-Legal/A4.</TD></TR><TR><TD VALIGN="TOP">0x00002000</TD><TD VALIGN="TOP">Can handle media
from US-Legal/A4 to ISO-C/A2.</TD></TR><TR><TD VALIGN="TOP">0x00004000</TD><TD VALIGN="TOP">Can handle media
larger than ISO-C/A2.</TD></TR><TR><TD VALIGN="TOP">0x00008000</TD><TD VALIGN="TOP">Can handle
user-defined media sizes.</TD></TR><TR><TD VALIGN="TOP">0x00010000</TD><TD VALIGN="TOP">Is an implicit
(server-generated) class.</TD></TR></TABLE></CENTER></P><H3><A NAME="5_4_6">5.4.6 printer-type-mask (type2 enum)</A></H3><P><I>(CUPS 1.1 and higher)</I></P><P>The printer-type-mask attribute is used to choose printers or classes
with the CUPS-Get-Printers and CUPS-Get-Classes operations. The bits
are defined identically to the printer-type attribute and default to
all 1's.</P><H3><A NAME="5_4_7">5.4.7 requesting-user-name-allowed (1setof
name(127))</A></H3><P><I>(CUPS 1.1 and higher)</I></P><P>The requesting-user-name-allowed attribute lists all of the users
that are allowed to access a printer or class. Either this attribute or
the requesting-user-name-denied attribute will be defined, but not
both.</P><H3><A NAME="5_4_8">5.4.8 requesting-user-name-denied (1setof name(127))</A></H3><P><I>(CUPS 1.1 and higher)</I></P><P>The requesting-user-name-denied attribute lists all of the users that
are not allowed to access a printer or class. Either this attribute or
the requesting-user-name-allowed attribute will be defined, but not
both.</P><H2><A NAME="5_5">5.5 Printer Class Attributes</A></H2><H3><A NAME="5_5_1">5.5.1 member-names (1setof name(127))</A></H3><P>The member-names attribute specifies each of the printer-name
attributes of the member printers and classes. Each name corresponds to
the same element of the member-uris attribute.</P><H3><A NAME="5_5_2">5.5.2 member-uris (1setof uri)</A></H3><P>The member-uris attribute specifies each of the printer-uri
attributes of the member printers and classes. Each URI corresponds to
the same element of the member-names attribute.</P><H1 TYPE="A" VALUE="1"><A NAME="6">A Glossary</A></H1><H2><A NAME="6_1">A.1 Terms</A></H2><DL><DT>C</DT><DD>A computer language.</DD><DT>parallel</DT><DD>Sending or receiving data more than 1 bit at a time.</DD><DT>pipe</DT><DD>A one-way communications channel between two programs.</DD><DT>serial</DT><DD>Sending or receiving data 1 bit at a time.</DD><DT>socket</DT><DD>A two-way network communications channel.</DD></DL><H2><A NAME="6_2">A.2 Acronyms</A></H2><DL><DT>ASCII</DT><DD>American Standard Code for Information Interchange</DD><DT>CUPS</DT><DD>Common UNIX Printing System</DD><DT>ESC/P</DT><DD>EPSON Standard Code for Printers</DD><DT>FTP</DT><DD>File Transfer Protocol</DD><DT>HP-GL</DT><DD>Hewlett-Packard Graphics Language</DD><DT>HP-PCL</DT><DD>Hewlett-Packard Page Control Language</DD><DT>HP-PJL</DT><DD>Hewlett-Packard Printer Job Language</DD><DT>IETF</DT><DD>Internet Engineering Task Force</DD><DT>IPP</DT><DD>Internet Printing Protocol</DD><DT>ISO</DT><DD>International Standards Organization</DD><DT>LPD</DT><DD>Line Printer Daemon</DD><DT>MIME</DT><DD>Multimedia Internet Mail Exchange</DD><DT>PPD</DT><DD>PostScript Printer Description</DD><DT>SMB</DT><DD>Server Message Block</DD><DT>TFTP</DT><DD>Trivial File Transfer Protocol</DD></DL></BODY></HTML>